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-rw-r--r--src/jogl/classes/jogamp/opengl/ExtensionAvailabilityCache.java116
1 files changed, 62 insertions, 54 deletions
diff --git a/src/jogl/classes/jogamp/opengl/ExtensionAvailabilityCache.java b/src/jogl/classes/jogamp/opengl/ExtensionAvailabilityCache.java
index 610f08e21..fd59ecfd4 100644
--- a/src/jogl/classes/jogamp/opengl/ExtensionAvailabilityCache.java
+++ b/src/jogl/classes/jogamp/opengl/ExtensionAvailabilityCache.java
@@ -1,22 +1,22 @@
/*
* Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
* Copyright (c) 2010 JogAmp Community. All rights reserved.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
- *
+ *
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
- *
+ *
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
- *
+ *
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
- *
+ *
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
@@ -29,20 +29,25 @@
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
+ *
* You acknowledge that this software is not designed or intended for use
* in the design, construction, operation or maintenance of any nuclear
* facility.
- *
+ *
* Sun gratefully acknowledges that this software was originally authored
* and developed by Kenneth Bradley Russell and Christopher John Kline.
*/
package jogamp.opengl;
-import javax.media.opengl.*;
+import java.util.HashMap;
+import java.util.StringTokenizer;
-import java.util.*;
+import javax.media.opengl.GL;
+import javax.media.opengl.GL2GL3;
+import javax.media.opengl.GLContext;
+
+import com.jogamp.common.util.VersionNumber;
/**
* A utility object intended to be used by implementations to act as a cache
@@ -57,7 +62,7 @@ final class ExtensionAvailabilityCache {
}
/**
- * Flush the cache.
+ * Flush the cache.
*/
final void flush()
{
@@ -78,24 +83,24 @@ final class ExtensionAvailabilityCache {
}
final boolean isInitialized() {
- return initialized && !availableExtensionCache.isEmpty() ;
+ return initialized;
}
final int getTotalExtensionCount() {
validateInitialization();
return availableExtensionCache.size();
}
-
+
final boolean isExtensionAvailable(String glExtensionName) {
validateInitialization();
- return availableExtensionCache.contains(glExtensionName);
+ return null != availableExtensionCache.get(glExtensionName);
}
final int getPlatformExtensionCount() {
validateInitialization();
return glXExtensionCount;
}
-
+
final String getPlatformExtensionsString() {
validateInitialization();
return glXExtensions;
@@ -105,7 +110,7 @@ final class ExtensionAvailabilityCache {
validateInitialization();
return glExtensionCount;
}
-
+
final String getGLExtensionsString() {
validateInitialization();
if(DEBUG) {
@@ -149,7 +154,6 @@ final class ExtensionAvailabilityCache {
", use "+ ( useGetStringi ? "glGetStringi" : "glGetString" ) );
}
- HashSet<String> glExtensionSet = new HashSet<String>(gl.isGLES() ? 50 : 320); // far less gl extension expected on mobile
if(useGetStringi) {
GL2GL3 gl2gl3 = gl.getGL2GL3();
final int count;
@@ -160,78 +164,84 @@ final class ExtensionAvailabilityCache {
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < count; i++) {
- if(i > 0) {
- sb.append(" ");
- }
final String ext = gl2gl3.glGetStringi(GL.GL_EXTENSIONS, i);
- glExtensionSet.add(ext);
- sb.append(ext);
+ if( null == availableExtensionCache.put(ext, ext) ) {
+ // new one
+ if( 0 < i ) {
+ sb.append(" ");
+ }
+ sb.append(ext);
+ }
}
if(0==count || sb.length()==0) {
// fall back ..
useGetStringi=false;
} else {
glExtensions = sb.toString();
+ glExtensionCount = count;
}
}
if(!useGetStringi) {
glExtensions = gl.glGetString(GL.GL_EXTENSIONS);
if(null != glExtensions) {
- StringTokenizer tok = new StringTokenizer(glExtensions);
+ final StringTokenizer tok = new StringTokenizer(glExtensions);
+ int count = 0;
while (tok.hasMoreTokens()) {
- glExtensionSet.add(tok.nextToken().trim());
+ final String ext = tok.nextToken().trim();
+ if( null == availableExtensionCache.put(ext, ext) ) {
+ count++;
+ }
}
+ glExtensionCount = count;
}
}
- glExtensionCount = glExtensionSet.size();
if (DEBUG) {
System.err.println(getThreadName() + ":ExtensionAvailabilityCache: GL_EXTENSIONS: "+glExtensionCount+
", used "+ ( useGetStringi ? "glGetStringi" : "glGetString" ) );
}
// Platform Extensions
- HashSet<String> glXExtensionSet = new HashSet<String>(50);
- {
- // unify platform extension .. might have duplicates
- StringTokenizer tok = new StringTokenizer(context.getPlatformExtensionsStringImpl().toString());
- while (tok.hasMoreTokens()) {
- glXExtensionSet.add(tok.nextToken().trim());
- }
+ {
+ // unify platform extension .. might have duplicates
final StringBuilder sb = new StringBuilder();
- for(Iterator<String> iter = glXExtensionSet.iterator(); iter.hasNext(); ) {
- sb.append(iter.next());
- if(iter.hasNext()) {
- sb.append(" ");
+ final StringTokenizer tok = new StringTokenizer(context.getPlatformExtensionsStringImpl().toString());
+ int count = 0;
+ while (tok.hasMoreTokens()) {
+ final String ext = tok.nextToken().trim();
+ if( null == availableExtensionCache.put(ext, ext) ) {
+ // new one
+ if( 0 < count ) {
+ sb.append(" ");
+ }
+ sb.append(ext);
+ count++;
}
}
glXExtensions = sb.toString();
- glXExtensionCount = glXExtensionSet.size();
+ glXExtensionCount = count;
}
- availableExtensionCache.addAll(glExtensionSet);
- availableExtensionCache.addAll(glXExtensionSet);
-
if (DEBUG) {
System.err.println(getThreadName() + ":ExtensionAvailabilityCache: GLX_EXTENSIONS: "+glXExtensionCount);
System.err.println(getThreadName() + ":ExtensionAvailabilityCache: GL vendor: " + gl.glGetString(GL.GL_VENDOR));
System.err.println(getThreadName() + ":ExtensionAvailabilityCache: ALL EXTENSIONS: "+availableExtensionCache.size());
}
- if(!context.isGLES()) {
- int major[] = new int[] { context.getGLVersionMajor() };
- int minor[] = new int[] { context.getGLVersionMinor() };
- while (GLContext.isValidGLVersion(major[0], minor[0])) {
- availableExtensionCache.add("GL_VERSION_" + major[0] + "_" + minor[0]);
- if (DEBUG) {
- System.err.println(getThreadName() + ":ExtensionAvailabilityCache: Added GL_VERSION_" + major[0] + "_" + minor[0] + " to known extensions");
- }
- if(!GLContext.decrementGLVersion(major, minor)) break;
+ final int ctxOptions = context.getCtxOptions();
+ final VersionNumber version = context.getGLVersionNumber();
+ int major[] = new int[] { version.getMajor() };
+ int minor[] = new int[] { version.getMinor() };
+ do{
+ final String GL_XX_VERSION = ( context.isGLES() ? "GL_ES_VERSION_" : "GL_VERSION_" ) + major[0] + "_" + minor[0];
+ availableExtensionCache.put(GL_XX_VERSION, GL_XX_VERSION);
+ if (DEBUG) {
+ System.err.println(getThreadName() + ":ExtensionAvailabilityCache: Added "+GL_XX_VERSION+" to known extensions");
}
- }
+ } while( GLContext.decrementGLVersion(ctxOptions, major, minor) );
// put a dummy var in here so that the cache is no longer empty even if
// no extensions are in the GL_EXTENSIONS string
- availableExtensionCache.add("<INTERNAL_DUMMY_PLACEHOLDER>");
+ availableExtensionCache.put("<INTERNAL_DUMMY_PLACEHOLDER>", "<INTERNAL_DUMMY_PLACEHOLDER>");
initialized = true;
}
@@ -245,10 +255,8 @@ final class ExtensionAvailabilityCache {
private int glExtensionCount = 0;
private String glXExtensions = null;
private int glXExtensionCount = 0;
- private HashSet<String> availableExtensionCache = new HashSet<String>(50);
+ private final HashMap<String, String> availableExtensionCache = new HashMap<String, String>(100);
- static String getThreadName() {
- return Thread.currentThread().getName();
- }
+ static String getThreadName() { return Thread.currentThread().getName(); }
}
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